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ATSAML21J16B-AUT

MCHPATSAML21J16B-AUT

Microchip Technology
ARM® Cortex®-M0+ SAM L21J Microcontroller IC 32-Bit 48MHz 64KB (64K x 8) FLASH 64-TQFP (10x10)
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Overview

The ATSAML21J16B-AUT is an ultra-low power 32-bit microcontroller based on the ARM Cortex-M0+ core, designed specifically for energy-constrained applications. Operating at up to 48MHz, it features sophisticated power management technologies, including multiple sleep modes and a battery-friendly supply range of 1.62V to 3.63V. This variant includes 64KB of Flash and 8KB of RAM in a 64-pin TQFP package.

Why Choose This Part

The SAM L21 series is distinguished by its sophisticated power domain gating and SleepWalking peripherals, which allow the MCU to process inputs without waking the CPU. With 51 I/O pins and 6 SERCOM modules configurable as I2C, SPI, or UART, it offers exceptional connectivity density for its power class. It also features a Full Speed USB 2.0 interface that can operate without an external crystal.

Applications

Battery-Powered IoT Nodes
Ideal for remote sensors that must operate for years on a single coin-cell battery due to its sub-microamp standby current.
Wearable Health Monitors
Small footprint and integrated 12-bit DAC/ADC peripherals allow for efficient processing of biometric signals in portable devices.
Smart Utility Meters
Utilizes the integrated RTC and low-power peripherals to maintain accurate timekeeping and data logging while consuming minimal energy.

Key Specifications

Speed 48MHz
RAM Size 8K x 8
Core Size 32-Bit
Peripherals DMA, POR, PWM, WDT
Connectivity I2C, LINbus, SCI, SPI, UART/USART, USB
Mounting Type Surface Mount
Number of I/O 51
Core Processor ARM Cortex-M0+
Package / Case 64-TQFP
Data Converters A/D 20x12b; D/A 2x12b
Oscillator Type Internal
Program Memory Size 64KB (64K x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 64-TQFP (10x10)
Voltage - Supply (Vcc/Vdd) 1.62V ~ 3.63V

Getting Started

Developers can utilize the Microchip SAM L21 Xplained Pro evaluation kit for rapid prototyping. Software development is supported by Atmel Studio and the MPLAB X IDE, with comprehensive driver support available through the Advanced Software Framework (ASF) or MPLAB Harmony. A standard SWD interface is used for programming and debugging via tools like the Atmel-ICE or J-Link.

Part of SAM Microcontrollers family » SAML21J

SAML21J Family

Part NumberDifferenceStock
ATSAML21J17B-MUT 256KB Flash 6,190

Categories

Microcontrollers > ARM Cortex-M0 / M0+ Microcontrollers > Microchip